Kia Optima 2004 Owner's Manual page 138

• The air conditioning system includes
a function that will automatically turn
the A/C compressor off if engine
coolant temperature approaches an
overheating level.
A/C compressor operation will
resume once engine coolant
temperature returns to the "normal"
range. Also, the A/C compressor is
automatically turned off for a few
seconds when the accelerator is fully
depressed.
• When operating the air conditioning
system use the outside (fresh) air
position.
• Operating the air conditioning system
in the recirculated air position does
provide maximum cooling, however,
continual operation in this mode may
cause the air inside the vehicle to
become stale.
4-54
DRIVING YOUR VEHICLE
Rear Heater Duct (if equipped)
Whenever the ventilation controls are in
the face-floor or floor position, air is
directed to the rear seat passenger floor
area.
Air Quality Control System
(If equipped)
The air inflow from the outside vehicle
can be automatically controlled.
Press the button to activate the "Air
Quality Control System". To deactivate
the system, press the button or air
intake control button or set modes
selection to the , position.
When using AQS mode, AQS(Air
Quality Control System) automatically
senses outdoor air pollutants and
minimizes them from entering the
vehicle, however, unpleasant or foul
odors that might be present may still be
noticeable within the vehicle.
CAUTION:
• Prolonged driving with the "Air
Quality Control System" ON will
cause frosting inside the vehicle.
• To defrost inside the vehicle, set the
mode selection to the
position or air intake button to the
outside position.
• The air quality control sensor is
located at the side of the radiator, be
careful to avoid damaging the sensor.
defrost